here our president was killed in dallas in 1963, and in many countries people would go riot in the streets, but in america lyndon johnson was sworn in, and it's a smooth transition of power. look at gore verse bush in 2000. went all the way to the supreme court, but there they were breaking bread together, vice president gore and then incoming president bush. it is what -- what we're seeing today the healthy side of our democracy. >> all right. douglas brinkley, thank you. good to see you, as always. >>> i want to turn to another story here. we are going to boston. these are aerial shots here of a train crash in boston. we understand reports that as many as 20 people might have been injured from this crash. we don't have a lot of information about this, but we are looking at the boston common there, and this is, you know, known as the t, the transit system there, and we understand that because of a crash, at least 20 people have been injured. we're going to have more details as soon as we can, as soon as we get more information we'll bring that back up. we'll take a quick break. ♪ [ male